losso Bolt Carrier Brushes This kit contains packs of Bolt Carrier and Chamber Brushes . They are sized to close tolerance for precision cleaning. They are made out of a distinctive blue fiber, which is thick, stiff and holds it’s shape well. This allows for back and forth action unlike traditional brass and bronze type brushes. They may be used several times before becoming worn. AR-15 Bolt Carrier w/stud 2 pack AR.308 Rifle Bolt Carrier w/stud 2 pack
